Dry farming rice irrigation method, device, equipment, system and storage medium

Abstract

The invention is suitable for the technical field of electric digital data processing, and provides a dry farming rice irrigation method, device, equipment and system and a storage medium, the method comprises the following steps: obtaining the daily average temperature and historical soil moisture content of target dry farming rice from the beginning of sowing to the current moment; determining the growth stage of the target dry farming rice based on the daily average temperature; based on the historical soil moisture content, the field water holding rate is obtained; determining an irrigation upper limit value and an irrigation lower limit value of the target dry farming rice at the current stage based on the field water holding capacity and the growth stage of the target dry farming rice; and performing irrigation management on the target dry farming rice based on the irrigation upper limit value and the irrigation lower limit value. The automation degree and the water and fertilizer utilization rate of dry farming rice field management can be effectively improved.

Description

Technical Field

[0001] The present application belongs to the field of electronic digital data processing technology, and in particular to a method, device, equipment, system and storage medium for dryland rice irrigation. Background Art

[0002] In recent years, in order to meet the needs of modern agricultural development, dryland rice cultivation technology has come into being. However, due to the small area of ​​dryland rice cultivation and the late start of related technical research, the supporting field management technology is still immature. Most of them adopt dry planting and dry management, relying on manual irrigation management, which is time-consuming and labor-intensive. The degree of automation of water and fertilizer management is low, and the waste problem is prominent, which restricts the large-scale promotion and application of dryland rice technology.

[0003] With the continuous development of modern agriculture and the increasingly prominent contradiction between water supply and demand, the development requirements of automation, mechanization and water and fertilizer conservation have been put forward for the rice field management mode. In order to meet the needs of modern agricultural development, rice dry farming technology has been promoted and applied on a large scale in recent years. However, due to the late start of relevant technical research, the complete set of field management technology suitable for dry rice cultivation is not yet mature, and the water and fertilizer management mode is extensive, the degree of automation is low, and there are serious problems such as serious waste of water and fertilizer.

[0004] At present, the water and fertilizer management technology of dryland rice is still immature. Most of them adopt dry planting and dry management, mainly relying on natural precipitation, and only carrying out large-scale flooding during the critical growth period. It is difficult to meet the irrigation needs of different growth periods and the utilization rate of irrigation water is low; some dryland rice planting adopts drip irrigation technology, but irrigation decisions mainly rely on traditional experience, and rice is a moisture-loving crop that requires frequent irrigation during the growth period. Relying on manual irrigation management is time-consuming and labor-intensive; in terms of fertilization, it mainly relies on manual fertilizer topdressing, which consumes manpower; the existing water and fertilizer management model is extensive, with a low degree of automation and serious waste of water and fertilizer, which restricts the large-scale promotion and application of dryland rice. Summary of the invention

[0005] The embodiments of the present application provide a dryland rice irrigation method, device, equipment, system and storage medium to solve the problems of extensive water and fertilizer management mode, low degree of automation, serious waste of water and fertilizer, etc.

[0006] This application is implemented through the following technical solutions: In a first aspect, an embodiment of the present application provides a method for irrigating dryland rice, comprising: Obtain the daily average temperature of the target dryland rice from the start of sowing to the current moment, as well as the historical soil moisture conditions.

[0007] Based on the daily average temperature, the growth stage of the target dryland rice was determined.

[0008] Obtain field water holding capacity based on historical soil moisture conditions.

[0009] Based on the field water holding capacity and the growth stage of the target dryland rice, the upper and lower irrigation limits of the target dryland rice at the current stage are determined.

[0010] Based on the irrigation upper limit and the irrigation lower limit, irrigation management is carried out for the target dryland rice.

[0011] In conjunction with the first aspect, in some possible implementations, determining the growth stage of the target dryland rice based on the daily average temperature includes: Based on the daily average temperature, the current effective accumulated temperature of the target dryland rice is obtained.

[0012] The growth stage of the target dryland rice is determined based on the current effective accumulated temperature of the target dryland rice.

[0013] In combination with the first aspect, in some possible implementations, obtaining the current effective accumulated temperature of the target dryland rice based on the daily average temperature includes: Based on the daily average temperature and combined with the first formula, the current effective accumulated temperature of the target dryland rice is obtained.

[0014] The first formula is:

[0015] in, express The current effective accumulated temperature of the day, Indicates The average daily temperature of Represents the biological zero temperature for target rainfed rice growth.

[0016] In combination with the first aspect, in some possible implementations, field water holding capacity is obtained based on historical soil moisture conditions, including: Based on historical soil moisture conditions, the soil moisture change curve is obtained.

[0017] Based on the soil moisture change curve, the field water holding capacity is obtained.

[0018] In combination with the first aspect, in some possible implementations, the field water holding capacity is obtained based on the soil moisture change curve, including: Obtain the moisture content and moisture content change rate at each moment on the soil moisture change curve.

[0019] Based on a preset change rate threshold, the moisture content change rate that is less than the preset change rate threshold is screened to obtain multiple target moments; wherein the moisture content change rate at the target moment is less than the preset change rate threshold.

[0020] Calculate the average moisture content at all target times to get the field water holding capacity.

[0021] In combination with the first aspect, in some possible implementations, the method further includes: If the growth stage of the target dryland rice is the tillering stage and the booting stage, the fertilization unit is controlled to apply the fertilizer to the root activity area of ​​the target dryland rice.

[0022] In a second aspect, an embodiment of the present application provides a dryland rice irrigation device, comprising: The data acquisition module is used to obtain the daily average temperature of the target dryland rice from the start of sowing to the current moment, as well as the historical soil moisture conditions.

[0023] The first calculation module is used to determine the growth stage of the target dryland rice based on the daily average temperature.

[0024] The second calculation module is used to obtain field water holding capacity based on historical soil moisture conditions.

[0025] The result output module is used to determine the upper and lower irrigation limits of the target dryland rice at the current stage based on the field water holding capacity and the growth stage of the target dryland rice.

[0026] The irrigation control module is used to manage the irrigation of the target dryland rice based on the irrigation upper limit value and the irrigation lower limit value.

[0027] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a processor and a memory, the memory being used to store a computer program, and when the processor executes the computer program, the dryland rice irrigation method as described in any one of the first aspects is implemented.

[0028] In a fourth aspect, an embodiment of the present application provides a dryland rice irrigation system, comprising: the electronic device as described in the third aspect, at least one soil moisture sensor, at least one air temperature sensor, at least one solenoid valve and at least one fertilization unit.

[0029] Soil moisture sensor, used to obtain the moisture content in the soil.

[0030] Air temperature sensor, used to obtain the temperature of the target dryland rice planting area.

[0031] The electronic device is used to calculate and determine the current growth stage of the target dryland rice and the irrigation upper limit and irrigation lower limit of the stage according to the daily average temperature of the target dryland rice from the start of sowing to the current moment, and the historical soil moisture conditions, and output a control signal according to the irrigation upper limit, irrigation lower limit and the moisture content at the current moment collected by the soil moisture sensor.

[0032] The solenoid valve is used to control the opening and closing of the water source channel according to the control signal of the electronic equipment.

[0033] The fertilization unit is used to control the application of fertilizer to the root activity area of ​​the target dryland rice according to the control signal of the electronic equipment.

[0034] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the dryland rice irrigation method as described in any one of the first aspects is implemented.

[0035] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0036] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: This application determines the current growth stage of rice and the upper and lower irrigation limits of this growth stage through the two data of daily average temperature and daily soil moisture conditions, and manages irrigation of dryland rice based on the current measured soil moisture data. The upper and lower irrigation limits are variable, combining the irrigation demand characteristics and soil moisture information of dryland rice in different growth stages, meeting the water demand in different growth stages while reducing the waste of water resources, and can effectively improve the degree of automation of field management and the utilization rate of water resources.

[0037] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0039] Figure 1 It is a schematic diagram of a process of a dryland rice irrigation method provided in an embodiment of the present application; Figure 2 is a schematic diagram of a soil moisture curve provided in an embodiment of the present application; Figure 3 is a schematic structural diagram of a dryland rice irrigation device provided in one embodiment of the present application; Figure 4 It is a schematic diagram of the structure of an electronic device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0040] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0041] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0042] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0043] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0044] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0045] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0046] The present application embodiment provides a method for irrigating dryland rice. Figure 1 is a schematic diagram of the process of a dryland rice irrigation method provided in an embodiment of the present application, referring to Figure 1 The details of the dryland rice irrigation method are as follows: Step 101, obtaining the daily average temperature of the target dryland rice from the start of sowing to the current moment, and the historical soil moisture conditions.

[0047] Rice is a moisture-loving crop. Water supply directly affects the yield and quality of rice. Rice has different water and fertilizer requirements at different growth stages. Dryland rice is sown directly in dry soil to ensure sufficient moisture for germination. Water for germination should be sufficient at one time. After watering thoroughly, it is not recommended to irrigate again before germination to maintain ground temperature and prevent excessive water from causing seed mildew and affecting germination rate. In the seedling stage, the irrigation method of wetting and drying is adopted to improve the utilization rate of irrigation water while meeting the growth needs. In the tillering-jointing stage, water should be irrigated frequently with appropriate water. After irrigating to saturation each time, the water should be irrigated to ensure that the soil is saturated. Stop irrigation, and irrigate again when there is no water accumulation on the ground and the surface is slightly moist to promote plant growth and tillering; Heading-fruiting period: The heading-fruiting period is the peak period of water and fertilizer demand, and the irrigation frequency should be increased to ensure sufficient irrigation and timely topdressing; Maturity period: In the early stage of maturity, irrigation should be alternating between dry and wet to prevent premature aging caused by water shortage and excessive irrigation affecting root activity and causing incomplete grains. In the late stage of maturity, reduce the amount and frequency of irrigation, and stop irrigation 7-10 days before harvest to facilitate mechanized harvesting in the field.

[0048] Step 102, determining the growth stage of the target dryland rice based on the daily average temperature.

[0049] Exemplarily, step 102 may include: Based on the daily average temperature, the current effective accumulated temperature of the target dryland rice is obtained.

[0050] The growth stage of the target dryland rice is determined based on the current effective accumulated temperature of the target dryland rice.

[0051] Exemplarily, based on the daily average temperature, the current effective accumulated temperature of the target dryland rice is obtained, including: Based on the daily average temperature and combined with the first formula, the current effective accumulated temperature of the target dryland rice is obtained.

[0052] The first formula is:

[0053] in, express The current effective accumulated temperature of the day, Indicates The average daily temperature of Indicates the biological zero temperature for the growth of target dryland rice. Specifically, the biological zero temperature for the growth of dryland rice is 10 degrees Celsius.

[0054] For example, when determining the growth stage of the target dryland rice, in addition to using the effective accumulated temperature, time is also used to determine the growth stage of the target dryland rice. For example, when the sowing time is 0≤t1≤a days, it is the seedling stage, and when the time is a<t2≤b days, it is the seedling stage, and so on.

[0055] When there is a deviation in the growth stages calculated by the two scales (time and effective accumulated temperature), the growth stage calculated by the effective accumulated temperature shall prevail, and the growth stage calculated by time shall be used to verify the growth stage.

[0056] Step 103, obtaining field water holding capacity based on historical soil moisture conditions.

[0057] Exemplarily, step 103 may include: Based on historical soil moisture conditions, the soil moisture change curve is obtained.

[0058] Based on the soil moisture change curve, the field water holding capacity is obtained.

[0059] Exemplarily, obtaining the field water holding capacity based on the soil moisture change curve may include: Obtain the moisture content and moisture content change rate at each moment on the soil moisture change curve.

[0060] Based on a preset change rate threshold, the moisture content change rate that is less than the preset change rate threshold is screened to obtain multiple target moments; wherein the moisture content change rate at the target moment is less than the preset change rate threshold.

[0061] Calculate the average moisture content at all target times to get the field water holding capacity.

[0062] For example, due to the different moisture retention properties of different soil types, there are large differences in the moisture change curves of different soils and characteristic parameters such as field water holding rate and wilting coefficient. Therefore, the upper and lower limits of irrigation cannot be simply set to a fixed value blindly.

[0063] The above method is designed to ensure that the field water holding capacity used is scientific and reasonable enough. Specifically, when the field is irrigated, when the amount of irrigation water is sufficient, deep seepage or surface runoff will occur. Then, with surface evaporation and deep seepage, the water content in the soil gradually decreases. Therefore, the historical data of the actual soil moisture value collected by the soil moisture sensor after sufficient irrigation will form a smooth downward curve, such as Figure 2As shown in the gentle curve after points S1 and S2, the mutation points (S1 and S2) of the curve are the field water holding capacity: that is, the maximum moisture content of the soil without deep seepage; after reaching the field water holding capacity, no deep seepage will occur, but with the evaporation of the surface and the transpiration of crops, the soil moisture content will continue to decrease. When the moisture content is lower than a certain value, it will inhibit crop growth until the crops wilt. The soil moisture content at this time is the soil wilting coefficient, and the moisture content between the soil wilting point and the field holding capacity is the effective moisture content for crop growth.

[0064] The soil moisture curve can be applied to any soil type, and there is no need to know the specific value of the soil's field water holding capacity. Users only need to bury the soil moisture sensor at an appropriate location in the control plot and communicate with the cloud control platform to automatically control the field irrigation process. On the one hand, it solves the problem that the exact value of the field water holding capacity of different soil types is difficult to obtain; on the other hand, irrigation decisions mainly rely on the soil moisture curve rather than setting the field water holding capacity to a fixed value. Using the soil moisture curve to obtain the field water holding capacity, even if the accuracy of the field water holding capacity collected by the sensor is not high, it will not affect the control of the irrigation and fertilization process, and can effectively improve the scientific rationality of irrigation management.

[0065] Step 104, determining an upper limit value and a lower limit value of irrigation for the target dryland rice at the current stage based on the field water holding capacity and the growth stage of the target dryland rice.

[0066] Exemplarily, the upper limit of irrigation at different growth stages can be set as field water holding capacity, and the lower limit of irrigation can be set to a specific proportion of the field water holding capacity, such as 75% or 80%, according to the water demand characteristics of different growth periods. The field water holding capacity can be obtained based on the soil moisture curve measured as above.

[0067] Step 105: performing irrigation management on the target dryland rice based on the irrigation upper limit value and the irrigation lower limit value.

[0068] For example, the soil moisture sensor can collect soil moisture conditions in real time. When the soil moisture value collected by the soil moisture sensor reaches the irrigation lower limit set for the corresponding growth stage, the system controls the field solenoid valve to open for irrigation; after a period of irrigation, when the soil moisture value collected by the soil moisture sensor reaches the set irrigation upper limit, the system controls the field solenoid valve to close and stop irrigation.

[0069] In particular, the field meteorological environment must also be considered when conducting irrigation control. When the temperature is too high in summer (T≥32℃), it is generally not suitable for irrigation. On the one hand, the temperature is high and the humidity is low at noon in summer, the evaporation rate is fast, and the utilization rate of irrigation water is low; on the other hand, when the temperature is high in summer, the soil temperature is also high, and the temperature difference between irrigation water, especially well water, and soil is large, which may affect crops after irrigation.

[0070] On the other hand, meteorological factors must also be considered when making irrigation decisions. If the weather forecast shows that there will be rainfall in the next 24 hours, irrigation will be postponed. If no rainfall occurs within the set postponement time, irrigation will be carried out immediately.

[0071] For example, if the system controls multiple irrigation units at the same time, soil moisture sensors need to be buried at appropriate locations in each irrigation unit; if the water output of the well cannot meet the simultaneous irrigation of multiple irrigation units, the irrigation units need to be numbered, and the solenoid valves corresponding to 1 to n irrigation units need to be opened each time according to the water supply of the water source, and irrigation is carried out in turn in sequence.

[0072] In one embodiment, the dryland rice irrigation method further comprises: If the growth stage of the target dryland rice is the tillering stage and the booting stage, the fertilization unit is controlled to apply the fertilizer to the root activity area of ​​the target dryland rice.

[0073] For example, the tillering and booting stages of rice are generally the key periods for topdressing. According to the growth period determination rules proposed in the patent of this invention, when the rice is monitored to have reached the tillering and booting stages, topdressing fertilizer reminder information can be pushed to the user through various channels such as text messages, emails and system prompts. The user can choose the appropriate time to apply fertilizer through the intelligent water-fertilizer integrated machine according to the actual situation.

[0074] In some specific embodiments, when applying topdressing, soluble solid fertilizer or liquid fertilizer is first dissolved in the fertilizer barrel of the intelligent water-fertilizer integrated machine. The fertilizer barrel is provided with a liquid level sensor, which can collect the liquid level height in the fertilizer barrel in real time and calculate the volume of the fertilizer liquid according to the diameter of the fertilizer barrel. When a set of water-fertilizer integrated system controls multiple fertilization units at the same time, the number of fertilization units is input in the system control interface, and the fertilizer liquid in the fertilizer barrel can be topdressed to each fertilization unit in equal amounts. When fertilizing through the water-fertilizer integrated system, the intelligent water-fertilizer integrated machine pumps the high-concentration fertilizer liquid in the fertilizer barrel to the irrigation network according to the set fertilizer amount, and topdresses the fertilizer liquid evenly and stably to the crop root activity area through drip irrigation, which is absorbed and utilized by the crops. Compared with traditional manual spreading or unmanned plant protection machine spraying, it effectively improves the sub-automation degree, uniformity and fertilizer utilization rate of fertilizer topdressing.

[0075] For example, the above method can be used to evenly and stably apply fertilizer liquid directly near the root system of crops, so that the fertilizer can be directly absorbed and utilized by the root system, which effectively improves the fertilizer utilization rate and solves the problem of time-consuming and labor-intensive manual fertilization.

[0076] The above-mentioned dryland rice irrigation method determines the current growth stage of rice and the upper and lower irrigation limits of this growth stage through the two data of daily average temperature and daily soil moisture conditions, and manages the irrigation of dryland rice based on the current measured soil moisture data. The upper and lower irrigation limits are variable, combining the irrigation demand characteristics and soil moisture information of dryland rice at different growth stages, meeting the water demand at different growth stages while reducing the waste of water resources, and can effectively improve the degree of automation of field management and the utilization rate of water resources.

[0077] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0078] Corresponding to the dryland rice irrigation method described in the above embodiment, Figure 3 A structural block diagram of a dryland rice irrigation device provided in an embodiment of the present application is shown. For ease of explanation, only the parts related to the embodiment of the present application are shown.

[0079] See also Figure 3 The dryland rice irrigation device in the embodiment of the present application may include: The data acquisition module 201 is used to obtain the daily average temperature of the target dryland rice from the start of sowing to the current moment, as well as the historical soil moisture conditions.

[0080] The first calculation module 202 is used to determine the growth stage of the target dryland rice based on the daily average temperature.

[0081] The second calculation module 203 is used to obtain field water holding capacity based on historical soil moisture conditions.

[0082] The result output module 204 is used to determine the upper and lower irrigation limits of the target dryland rice at the current stage based on the field water holding capacity and the growth stage of the target dryland rice.

[0083] The irrigation control module 205 is used to manage the irrigation of the target dryland rice based on the irrigation upper limit value and the irrigation lower limit value.

[0084] Exemplarily, the first calculation module 202 may be used to: Based on the daily average temperature, the current effective accumulated temperature of the target dryland rice is obtained.

[0085] The growth stage of the target dryland rice is determined based on the current effective accumulated temperature of the target dryland rice.

[0086] Exemplarily, the first calculation module 202 may be used to: Based on the daily average temperature and combined with the first formula, the current effective accumulated temperature of the target dryland rice is obtained.

[0087] The first formula can be:

[0088] in, express The current effective accumulated temperature of the day, Indicates The average daily temperature of Represents the biological zero temperature for target rainfed rice growth.

[0089] Exemplarily, the second calculation module 203 may be used to: Based on historical soil moisture conditions, the soil moisture change curve is obtained.

[0090] Based on the soil moisture change curve, the field water holding capacity is obtained.

[0091] Exemplarily, the second calculation module 203 may be used to: Obtain the moisture content and moisture content change rate at each moment on the soil moisture change curve.

[0092] Based on a preset change rate threshold, the moisture content change rate that is less than the preset change rate threshold is screened to obtain multiple target moments; wherein the moisture content change rate at the target moment is less than the preset change rate threshold.

[0093] Calculate the average moisture content at all target times to get the field water holding capacity.

[0094] Exemplarily, the irrigation control module 205 may also be used to: If the growth stage of the target dryland rice is the tillering stage and the booting stage, the fertilization unit is controlled to apply the fertilizer to the root activity area of ​​the target dryland rice.

[0095] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

[0096] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0097] The present application also provides an electronic device, see Figure 4 The electronic device 300 may include: at least one processor 310 and a memory 320, wherein the memory 320 is used to store a computer program 321, and the processor 310 is used to call and run the computer program 321 stored in the memory 320 to implement the steps in any of the above-mentioned method embodiments, for example Figure 1 Steps 101 to 105 in the illustrated embodiment. Alternatively, when the processor 310 executes the computer program, the functions of each module / unit in the above-mentioned device embodiments are implemented, for example Figure 3 The functions of each module are shown.

[0098] Exemplarily, the computer program 321 may be divided into one or more modules / units, one or more modules / units are stored in the memory 320, and are executed by the processor 310 to complete the present application. The one or more modules / units may be a series of computer program segments that can complete specific functions, and the program segments are used to describe the execution process of the computer program in the electronic device 300.

[0099] Those skilled in the art will understand that Figure 4 These are merely examples of electronic devices and do not constitute a limitation of the electronic device. The electronic device may include more or fewer components than those shown in the figure, or a combination of certain components, or different components, such as input and output devices, network access devices, buses, etc.

[0100] The processor 310 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0101] The memory 320 may be an internal storage unit of the electronic device, or an external storage device of the electronic device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. The memory 320 is used to store the computer program and other programs and data required by the electronic device. The memory 320 may also be used to temporarily store data that has been output or is to be output.

[0102] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of this application is not limited to only one bus or one type of bus.

[0103] The dryland rice irrigation method provided in the embodiment of the present application can be applied to electronic devices such as computers, wearable devices, vehicle-mounted devices, tablet computers, laptops, netbooks, etc. The embodiment of the present application does not impose any restrictions on the specific type of electronic devices.

[0104] An embodiment of the present application also provides a dryland rice irrigation system, comprising: the above-mentioned electronic device, at least one soil moisture sensor, at least one air temperature sensor, at least one solenoid valve and at least one fertilization unit.

[0105] Soil moisture sensor, used to obtain the moisture content in the soil.

[0106] Air temperature sensor, used to obtain the temperature of the target dryland rice planting area.

[0107] The electronic device is used to calculate and determine the current growth stage of the target dryland rice and the irrigation upper limit and irrigation lower limit of the stage according to the daily average temperature of the target dryland rice from the start of sowing to the current moment, and the historical soil moisture conditions, and output a control signal according to the irrigation upper limit, irrigation lower limit and the moisture content at the current moment collected by the soil moisture sensor.

[0108] The solenoid valve is used to control the opening and closing of the water source channel according to the control signal of the electronic equipment.

[0109] The fertilization unit is used to control the application of fertilizer to the root activity area of ​​the target dryland rice according to the control signal of the electronic equipment.

[0110] The dryland rice irrigation system is mainly composed of two parts: the management platform and the supporting hardware equipment. The supporting hardware equipment mainly includes the head equipment such as water pumps, frequency converters, filters, intelligent water-fertilizer integrated machines, water supply and distribution pipelines, field solenoid valves, drip irrigation belts and other irrigation equipment, field weather stations and soil moisture sensors and other field information collection equipment, pressure gauges and flow meters and other measuring equipment as well as gateways, decoders and other communication equipment. Among them, water pumps, filters and fertilizer applicators are collectively referred to as the head system. In order to ensure the normal operation of the dryland rice irrigation system, the system's supporting water pumps are generally regulated by a constant pressure inverter to ensure that the system is in a relatively stable pressure state; field weather stations and soil moisture sensors are used to collect field weather and soil moisture information to provide data support for water and fertilizer management decisions; the field water supply and distribution network divides the irrigation area into several irrigation units. Generally, each irrigation unit is equipped with a set of solenoid valves and corresponding valve controllers / decoders. The opening and closing of the solenoid valves are controlled by the valve controllers / decoders to realize automatic control of the field irrigation valves. According to different communication methods, it is divided into two categories: wired control and wireless control. At present, wireless control is mainly through the LoRa self-organizing network mode, and wired control mostly adopts the bus mode.

[0111] When the system is working, it can control the irrigation and fertilization process in two relatively independent modes, automatic and manual. When manual control is adopted, users mainly rely on traditional experience and send control instructions through the web page or mobile phone APP; when automatic control is adopted, control instructions are sent through the collected field meteorological and soil moisture information and the established water and fertilizer management decision model. The server sends the control instructions to the valve control box / fertilizer machine industrial control board. If the wireless LoRa self-organizing network mode is adopted later, the valve control box / fertilizer machine industrial control board will send the instructions to the LoRa wireless valve control gateway. One gateway can control multiple valve controllers (up to 256). According to the actual application situation, one valve control The device can control one or two solenoid valves. After the control command is sent to the wireless gateway, the wireless gateway sends the command to the corresponding valve controller through wireless LoRa communication according to the corresponding serial number. The valve controller then controls the solenoid valve. The specific control principle is to send pulse electromagnetic waves through the valve controller to drive the solenoid valve to operate, thereby controlling the opening and closing of the valve; if wired control is adopted, the valve control box / fertilizer machine industrial control board sends the command to the wired valve control module. One valve control module controls multiple decoders (up to 64). The valve control module sends the command to the decoder through the communication line, and drives the electromagnetic head through the decoder to control the opening and closing of the valve, thereby realizing field automatic irrigation.

[0112] The embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in each embodiment of the above-mentioned dryland rice irrigation method can be implemented.

[0113] An embodiment of the present application provides a computer program product. When the computer program product is run on a mobile terminal, the mobile terminal can implement the steps in each embodiment of the above-mentioned dryland rice irrigation method when executing the computer program product.

[0114] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium can at least include: any entity or device that can carry the computer program code to the camera / electronic device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), electrical carrier signal, telecommunication signal and software distribution medium. For example, a USB flash drive, a mobile hard disk, a disk or an optical disk.

[0115] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0116] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0117] In the embodiments provided in the present application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0118] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0119] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for irrigating dryland rice, characterized in that: include: Obtain the daily average temperature of the target dryland rice from the beginning of sowing to the present moment, as well as the historical soil moisture conditions; determining a growth stage of the target dryland rice based on the daily average temperature; Based on the historical soil moisture conditions, obtaining field water holding capacity; Based on the field water holding capacity and the growth stage of the target dryland rice, determining an upper limit value and a lower limit value of irrigation at a current stage of the target dryland rice; Based on the irrigation upper limit value and the irrigation lower limit value, irrigation management is performed on the target dryland rice.

2. The dryland rice irrigation method according to claim 1, characterized in that: Determining the growth stage of the target dryland rice based on the daily average temperature includes: Based on the daily average temperature, obtaining the current effective accumulated temperature of the target dryland rice; Based on the current effective accumulated temperature of the target dryland rice, the growth stage of the target dryland rice is determined.

3. The dryland rice irrigation method according to claim 2, characterized in that: The method of obtaining the current effective accumulated temperature of the target dryland rice based on the daily average temperature includes: Based on the daily average temperature and in combination with the first formula, the current effective accumulated temperature of the target dryland rice is obtained; The first formula is: in, express The current effective accumulated temperature of the day, Indicates The average daily temperature of Represents the biological zero temperature for target rainfed rice growth.

4. The dryland rice irrigation method according to claim 1, characterized in that: The obtaining of field water holding capacity based on the historical soil moisture conditions includes: Based on the historical soil moisture conditions, a soil moisture change curve is obtained; Based on the soil moisture change curve, the field water holding capacity is obtained.

5. The dryland rice irrigation method according to claim 4, characterized in that: The method of obtaining the field water holding capacity based on the soil moisture change curve comprises: Obtaining the moisture content and moisture content change rate at each moment on the soil moisture change curve; Based on a preset change rate threshold, the moisture content change rate that is less than the preset change rate threshold is screened to obtain multiple target moments; wherein the moisture content change rate at the target moment is less than the preset change rate threshold; The average of the moisture content at all target moments is calculated to obtain the field water holding capacity.

6. The dryland rice irrigation method according to claim 1, characterized in that: The method also includes: If the growth stage of the target dryland rice is the tillering stage and the booting stage, the fertilization unit is controlled to apply fertilizer to the root activity area of ​​the target dryland rice.

7. A dryland rice irrigation device, characterized in that: include: The data acquisition module is used to obtain the daily average temperature of the target dryland rice from the beginning of sowing to the current moment, as well as the historical soil moisture conditions; A first calculation module is used to determine the growth stage of the target dryland rice based on the daily average temperature; A second calculation module is used to obtain field water holding capacity based on the historical soil moisture conditions; A result output module is used to determine the upper and lower irrigation limits of the target dryland rice at the current stage based on the field water holding capacity and the growth stage of the target dryland rice; The irrigation control module is used to manage the irrigation of the target dryland rice based on the irrigation upper limit value and the irrigation lower limit value.

8. An electronic device comprising: A processor and a memory, wherein the memory stores a computer program that can be run on the processor, wherein when the processor executes the computer program, the dryland rice irrigation method according to any one of claims 1 to 6 is implemented.

9. A dryland rice irrigation system, characterized in that: include: The electronic device according to claim 8, at least one soil moisture sensor, at least one air temperature sensor, at least one solenoid valve and at least one fertilization unit; The soil moisture sensor is used to obtain the moisture content in the soil; The temperature sensor is used to obtain the temperature of the target dryland rice planting area; The electronic device is used to calculate and determine the current growth stage of the target dryland rice and the irrigation upper limit and irrigation lower limit of the stage according to the daily average temperature and daily soil moisture of the target dryland rice from the start of sowing to the current moment, and output a control signal according to the irrigation upper limit, irrigation lower limit and the moisture content at the current moment collected by the soil moisture sensor; The solenoid valve is used to control the opening and closing of the water source channel according to the control signal of the electronic device; The fertilization unit is used to control the fertilizer to be applied to the root activity area of ​​the target dryland rice according to the control signal of the electronic device.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the dryland rice irrigation method according to any one of claims 1 to 6 is implemented.

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